From 3b49ae380ce1a3054e0c505dd9a356b82a5b48e8 Mon Sep 17 00:00:00 2001 From: Lv Ruyi Date: Tue, 12 Apr 2022 08:53:05 +0000 Subject: mfd: ipaq-micro: Fix error check return value of platform_get_irq() platform_get_irq() return negative value on failure, so null check of irq is incorrect. Fix it by comparing whether it is less than zero. Fixes: dcc21cc09e3c ("mfd: Add driver for Atmel Microcontroller on iPaq h3xxx") Reported-by: Zeal Robot Signed-off-by: Lv Ruyi Reviewed-by: Linus Walleij Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/20220412085305.2533030-1-lv.ruyi@zte.com.cn --- drivers/mfd/ipaq-micro.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/mfd/ipaq-micro.c') diff --git a/drivers/mfd/ipaq-micro.c b/drivers/mfd/ipaq-micro.c index e92eeeb67a98..4cd5ecc72211 100644 --- a/drivers/mfd/ipaq-micro.c +++ b/drivers/mfd/ipaq-micro.c @@ -403,7 +403,7 @@ static int __init micro_probe(struct platform_device *pdev) micro_reset_comm(micro); irq = platform_get_irq(pdev, 0); - if (!irq) + if (irq < 0) return -EINVAL; ret = devm_request_irq(&pdev->dev, irq, micro_serial_isr, IRQF_SHARED, "ipaq-micro", -- cgit v1.2.3-58-ga151